The rehashing of "tired arguments" is usually because the ones receiving it (Mongo-users in this instance) are in love with their technology and just dismisses

The rehashing of "tired arguments" is usually because the ones receiving it (Mongo-users in this instance) are in love with their technology and just dismisses the issues... There is a reason that RDBMs with SQL is still alive almost four decades after its inception... it was a quantum leap forward (and still is) The point is data quality, data durability and flexibility... and performance... Remember, those who are ignorant of history are doomed to repeat it... Btw. as others pointed out, HSTORE actually predates MongoDB, but I give you that some of the fire under HSTORE is due to MongoDB's "threat"... As a very happy PostgreSQL user I thank MongoDB for that at least :)